查询 WMI 类 Win32_QuickFixEngineering 返回很多奇怪的时间戳 (C#) [英] Querying WMI class Win32_QuickFixEngineering returns mucho weirdo timestamps (C#)

问题描述

类文档此处.InstalledOn 属性应该在安装修复程序时具有(好吧，废话)的时间戳.但是文档没有说明格式是什么.我得到一些难以理解的东西，但它显然意味着什么.01ca56402c180b70"是一个很明显的十六进制数，但是什么?

Class documentation here. The InstalledOn property is supposed to have a timestamp of (well, duh) when the fix was installed. But the doc doesn't say what's the format. I get something unintelligible, but it clearly means something. "01ca56402c180b70" is very obvious a hex number, but of what?

还有一件事:为什么前几个项目看起来像 GUID?它们是什么意思?

And another thing: why do the first few items look like GUIDs? What do they mean?

大码:

ManagementScope scope;
ConnectionOptions options = new ConnectionOptions();
options.Username = tbUsername.Text;
options.Password = tbPassword.Password;
options.Authority = String.Format("ntlmdomain:{0}", tbDomain.Text);
scope = new ManagementScope(String.Format("\\\\{0}\\root\\cimv2", tbHost.Text), options);
scope.Connect();
ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, new ObjectQuery("SELECT * FROM Win32_QuickFixEngineering"));
foreach (ManagementObject queryObj in searcher.Get())
{
    wmiResults.Text += String.Format("{0} <{1}>: {2} (Installed {3} by '{4}')",
                                     queryObj["HotFixID"],
                                     queryObj["Caption"],
                                     queryObj["Description"],
                                     queryObj["InstalledOn"],
                                     queryObj["InstalledBy"]
                                     );
}

输出:

{87796B93-94D0-A0C7-EFC4-FF34426626BC} <>:  (Installed 20090513 by '')
{D93F9C7C-AB57-44C8-BAD6-1494674BCAF7} <>:  (Installed 20090928 by '')
{9AD2FB23-AC50-435C-8ABC-8119D29CF0C1} <>:  (Installed 20090929 by '')
{62D3B51B-F56D-40F0-8C32-EAB204ADF752} <>:  (Installed 20090513 by '')
{EC038F86-AC1E-4C30-AEFB-B6B8A3922DCD} <>:  (Installed 20091116 by '')
{D1219E04-62FF-49D0-804C-A27F968E50A5} <>:  (Installed 20091116 by '')
{1DE62EBA-6684-2483-3409-CEBADBF8A31E} <>:  (Installed 20090513 by '')
{8CA89076-2A6D-42C3-AA24-F203C9E5DBF3} <>:  (Installed 20090513 by '')
{F5E29D9D-519A-36C7-87E3-9A22A8180B1B} <>:  (Installed 20091016 by '')
KB948609 <http://support.microsoft.com/?kbid=948609>: Update (Installed 01c9d3cb9b46a87c by 'S-1-5-21-2756995651-916083937-3196967445-500')
KB948610 <http://support.microsoft.com/?kbid=948610>: Update (Installed 01c9d3cb9b4909dd by 'S-1-5-21-2756995651-916083937-3196967445-500')
KB951978 <http://support.microsoft.com/?kbid=951978>: Update (Installed 01ca408d02d6cdbe by 'S-1-5-18')
KB952287 <http://support.microsoft.com/?kbid=952287>: Hotfix (Installed 01ca408d02d925c8 by 'S-1-5-18')
KB954155 <http://support.microsoft.com/?kbid=954155>: Security Update (Installed 01ca56402c10e74d by 'S-1-5-18')
KB955020 <http://support.microsoft.com/?kbid=955020>: Update (Installed 01ca408d02d925c8 by 'S-1-5-18')
KB955302 <http://support.microsoft.com/?kbid=955302>: Update (Installed 01ca408d02db7dd2 by 'S-1-5-18')
KB956250 <http://support.microsoft.com>: Update (Installed 01ca66e5e6fc6b70 by 'S-1-5-21-501351562-481299158-1019697294-11592')
KB958481 <http://support.microsoft.com/?kbid=958481>: Update (Installed 01ca408d02db7dd2 by 'S-1-5-18')
KB958483 <http://support.microsoft.com/?kbid=958483>: Update (Installed 01ca408d02ddd5dc by 'S-1-5-18')
KB958644 <http://support.microsoft.com/?kbid=958644>: Security Update (Installed 01ca57f748bfe059 by 'S-1-5-21-2756995651-916083937-3196967445-500')
KB958869 <http://support.microsoft.com/?kbid=958869>: Security Update (Installed 01ca56402c10e74d by 'S-1-5-18')
KB959772 <http://support.microsoft.com/?kbid=959772>: Update (Installed 01ca408d02ddd5dc by 'S-1-5-18')
KB968389 <http://support.microsoft.com/?kbid=968389>: Update (Installed 01ca408d02e02de6 by 'S-1-5-18')
KB968816 <http://support.microsoft.com/?kbid=968816>: Security Update (Installed 01ca45c1ebfd041f by 'S-1-5-18')
KB971486 <http://support.microsoft.com/?kbid=971486>: Security Update (Installed 01ca56402c1348ae by 'S-1-5-18')
KB972594 <http://support.microsoft.com/?kbid=972594>: Security Update (Installed 01ca408d02e02de6 by 'S-1-5-18')
KB973525 <http://support.microsoft.com/?kbid=973525>: Security Update (Installed 01ca56402c1348ae by 'S-1-5-18')
KB974455 <http://support.microsoft.com/?kbid=974455>: Security Update (Installed 01ca56402c15aa0f by 'S-1-5-18')
KB974571 <http://support.microsoft.com/?kbid=974571>: Security Update (Installed 01ca56402c15aa0f by 'S-1-5-18')
KB975467 <http://support.microsoft.com/?kbid=975467>: Security Update (Installed 01ca56402c15aa0f by 'S-1-5-18')
KB975517 <http://support.microsoft.com/?kbid=975517>: Security Update (Installed 01ca56402c180b70 by 'S-1-5-18')

推荐答案

http://blogs.msdn.com/oldnewthing/archive/2003/09/05/54806.aspx 提供了有关解释不同类型时间戳的信息.看起来您有一个 Win32 FILETIME.

http://blogs.msdn.com/oldnewthing/archive/2003/09/05/54806.aspx gives info on interpreting different types of time stamps. It looks like you have a Win32 FILETIME.

这篇关于查询 WMI 类 Win32_QuickFixEngineering 返回很多奇怪的时间戳 (C#)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！